[AK4426]

ANALOG CHARACTERISTICS

(Ta = 25

°C; VDD=AVDD = +5.0V; fs = 44.1 kHz; BICK = 64fs; Signal Frequency = 1 kHz;

24bit Input Data; Measurement frequency = 20Hz

Parameter

min

typ

max

Units

Resolution

24

Bits

Dynamic Characteristics (Note 4)

fs=44.1kHz, BW=20kHz

-91

-84

dB

fs=96kHz, BW=40kHz

-91

-

dB

THD+N (0dBFS)

fs=192kHz, BW=40kHz

-91

-

dB

Dynamic Range (-60dBFS with A-weighted. (Note 5)

100

106

dB

S/N (A-weighted. (Note 6)

100

106

dB

Interchannel Isolation (1kHz)

90

100

dB

Interchannel Gain Mismatch

0.2

0.5

dB

DC Accuracy

DC Offset

(at output pin)

-5

0

+5

mV

Gain Drift

100

-

ppm/

°C

Output Voltage (Note 7)

2.05

2.2

2.35

Vrms

Load Capacitance (Note 8)

25

pF

Load Resistance

5

k

Ω

Power Supplies

Power Supply Current: (Note 9)

Normal Operation (fs

≤96kHz)

Normal Operation (fs=192kHz)

Power-Down Mode (Note 10)

24

27

10

36

40

100

mA

mA

μA

Note 4. Measured by Audio Precision (System Two). Refer to the evaluation board manual.

Note 5. 98dB for 16bit input data

Note 6. S/N does not depend on input data size.

Note 7. Full-scale voltage (0dB). Output voltage is proportional to the voltage of AVDD,

AOUT (typ.@0dB) = 2.2Vrms × AVDD/5.

Note 8. In case of driving capacitive load, inset a resistor between the output pin and the capacitive load.

Note 9. The current into VDD and AVDD.

Note 10. All digital inputs including clock pins (MCLK, BICK and LRCK) are fixed to VSS1(VSS2) or VDD(AVDD).

MS1176-E-02

2011/03

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